{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "To examine the relationship between quantitative stimulant drug levels , catecholamines , and psychotic symptoms , nineteen patients in a psychiatric emergency service with a diagnosis of amphetamine - or cocaine - induced psychosis were interviewed , and plasma and urine were collected for quantitative assays of stimulant drug and catecholamine metabolite levels ."}
{"Chemical": ["catecholamines", "catecholamine", "amphetamine", "cocaine"], "Disease": ["psychotic symptoms", "psychiatric", "psychosis"]}